GROUP ONE TRADING, L.P. - CASTLIGHT HEALTH INC ownership

CASTLIGHT HEALTH INC's ticker is CSLT and the CUSIP is 14862Q100. A total of 106 filers reported holding CASTLIGHT HEALTH INC in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.1%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of CASTLIGHT HEALTH INC
ValueSharesWeighting
Q4 2020$1,0004000.0%0.00%
Q3 2020$0
-100.0%
400
-75.0%
0.00%
Q4 2018$3,000
-85.0%
1,600
-78.3%
0.00%
Q3 2018$20,000
+233.3%
7,390
+392.7%
0.00%
Q3 2016$6,000
-85.0%
1,500
-87.5%
0.00%
-100.0%
Q1 2016$40,000
+3900.0%
12,000
+5900.0%
0.00%
Q4 2015$1,000
-96.0%
200
-96.6%
0.00%
Q3 2015$25,000
-90.7%
5,868
-82.3%
0.00%
-100.0%
Q2 2015$270,000
+1250.0%
33,125
+1174.0%
0.00%
Q1 2015$20,000
-93.0%
2,600
-86.2%
0.00%
-100.0%
Q2 2014$286,00018,7990.00%
Other shareholders
CASTLIGHT HEALTH INC shareholders Q4 2018
NameSharesValueWeighting ↓
Venrock Management VI, LLC 3,707,442$5,821,0003.99%
SCW Capital Management, LP 2,439,616$3,830,0003.10%
Gagnon Advisors, LLC 2,958,279$4,644,0001.84%
PERKINS CAPITAL MANAGEMENT INC 1,663,000$2,611,0001.62%
Whetstone Capital Advisors, LLC 5,279,217$8,288,0001.45%
GAGNON SECURITIES LLC 4,111,408$6,455,0000.96%
Monarch Partners Asset Management LLC 1,310,561$2,058,0000.30%
APOGEM CAPITAL LLC 258,271$405,0000.26%
Parkman Healthcare Partners LLC 600,000$942,0000.24%
JOHNSON & JOHNSON 811,295$1,274,0000.11%
View complete list of CASTLIGHT HEALTH INC shareholders